Konstantinos Kyriakopoulos

Greek farmers honked their tractor horns in front of parliament on Wednesday after spending the night in central Athens as their protest against rising fuel and production costs stretched into a second day.

At least 8,000 farmers, beekeepers and livestock breeders joined the protest on Syntagma Square on Tuesday, echoing grievances at similar demonstrations across Europe.

Postgraduate student Christos Antoniou (l) and PhD candidate Giorgos Zogopoulos (r) hold a drone in a laboratory at the National Technical University of Athens.